org.evosuite.testcase.statements

Class AssignmentStatement

java.lang.Object

org.evosuite.testcase.statements.AbstractStatement

org.evosuite.testcase.statements.AssignmentStatement

All Implemented Interfaces:

Serializable, Statement

public class AssignmentStatement
extends AbstractStatement

An assignment statement assigns a variable to another variable. This is only used to assign to array indices

Author:

Gordon Fraser

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.evosuite.testcase.statements.AbstractStatement

AbstractStatement.Executer

Field Summary

Fields

Modifier and Type	Field and Description
protected VariableReference	parameter

Fields inherited from class org.evosuite.testcase.statements.AbstractStatement

assertions, comment, logger, retval, tc

Constructor Summary

Constructors

Constructor and Description
AssignmentStatement(TestCase tc, VariableReference var, VariableReference value) Constructor for AssignmentStatement.

Method Summary

Modifier and Type	Method and Description
Statement	copy(TestCase newTestCase, int offset) copy
boolean	equals(Object obj) Equality check
Throwable	execute(Scope scope, PrintStream out) This method executes the statement under the given scope.
GenericAccessibleObject<?>	getAccessibleObject() Returns the accessibleObject which is used to generate this kind of statement E.g.
int	getPosition() getPosition
List<VariableReference>	getUniqueVariableReferences() getUniqueVariableReferences
VariableReference	getValue() getValue
Set<VariableReference>	getVariableReferences() getVariableReferences
int	hashCode() Generate hash code
boolean	isAssignmentStatement() Returns true if this statement should be handled as an AssignmentStatement.
boolean	isValid() Various consistency checks.
boolean	mutate(TestCase test, TestFactory factory) mutate
void	replace(VariableReference var1, VariableReference var2) Replace a VariableReference with another one
boolean	same(Statement s) Allows the comparing of Statements between TestCases.

Methods inherited from class org.evosuite.testcase.statements.AbstractStatement

addAssertion, addComment, changeClassLoader, clone, clone, copyAssertions, exceptionHandler, getAssertionCode, getAssertionReferences, getAssertions, getCode, getCode, getComment, getDeclaredExceptions, getExceptionClass, getNumParameters, getReturnClass, getReturnType, getReturnValue, getTestCase, hasAssertions, isAccessible, isDeclaredException, isReflectionStatement, negate, references, removeAssertion, removeAssertions, setAssertions, setRetval

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

parameter

protected VariableReference parameter

Constructor Detail

AssignmentStatement

public AssignmentStatement(TestCase tc,
                           VariableReference var,
                           VariableReference value)

Constructor for AssignmentStatement.

Parameters:

tc - a TestCase object.

var - a VariableReference object.

value - a VariableReference object.

Method Detail

getValue

public VariableReference getValue()

getValue

Returns:

a VariableReference object.

copy

public Statement copy(TestCase newTestCase,
                      int offset)

copy

Parameters:

newTestCase - the testcase in which this statement will be inserted

offset - a int.

Returns:

a Statement object.

execute

public Throwable execute(Scope scope,
                         PrintStream out)
                  throws InvocationTargetException,
                         IllegalArgumentException,
                         IllegalAccessException,
                         InstantiationException

This method executes the statement under the given scope. If execution of the statement is aborted abnormally (i.e. an exception is thrown.) The exception is returned. Otherwise the return value is null.

Parameters:

scope - the scope under which the statement is executed

out - a PrintStream object.

Returns:

if an exception was thrown during execution this is the exception

Throws:

InvocationTargetException - if any.

IllegalArgumentException - if any.

IllegalAccessException - if any.

InstantiationException - if any.

getVariableReferences

public Set<VariableReference> getVariableReferences()

getVariableReferences

Returns:

a Set object.

replace

public void replace(VariableReference var1,
                    VariableReference var2)

Replace a VariableReference with another one

Parameters:

var1 - The old variable

var2 - The new variable

hashCode

public int hashCode()

Generate hash code

Specified by:

hashCode in interface Statement

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Equality check

Specified by:

equals in interface Statement

Overrides:

equals in class Object

getUniqueVariableReferences

public List<VariableReference> getUniqueVariableReferences()

getUniqueVariableReferences

Returns:

a List object.

isValid

public boolean isValid()

Various consistency checks. This method might also return with an assertionError Functionality might depend on the status of enableAssertions in this JVM

Specified by:

isValid in interface Statement

Overrides:

isValid in class AbstractStatement

Returns:

a boolean.

same

public boolean same(Statement s)

Allows the comparing of Statements between TestCases. I.e. this is a more semantic comparison than the one done by equals. E.g. two Variable are equal if they are at the same position and they reference to objects of the same type.

Parameters:

s - a Statement object.

Returns:

a boolean.

mutate

public boolean mutate(TestCase test,
                      TestFactory factory)

mutate

Specified by:

mutate in interface Statement

Overrides:

mutate in class AbstractStatement

Parameters:

test - a TestCase object.

factory - a TestFactory object.

Returns:

a boolean.

getAccessibleObject

public GenericAccessibleObject<?> getAccessibleObject()

Returns the accessibleObject which is used to generate this kind of statement E.g. the Field of a FieldStatement, the Method of a MethodStatement and so on MAY return NULL (for example for NullStatements)

Returns:

a AccessibleObject object.

isAssignmentStatement

public boolean isAssignmentStatement()

Returns true if this statement should be handled as an AssignmentStatement. This method was added to allow the wrapping of AssignmentStatements (in which case "a instanceof AssignmentStatement" is no longer working)

Returns:

a boolean.

getPosition

public int getPosition()

Description copied from class: AbstractStatement

getPosition

Specified by:

getPosition in interface Statement

Overrides:

getPosition in class AbstractStatement

Returns:

a int.